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Gearbox Pumps

Industrial Duty Gearbox-Driven Pumps
Photo of Gearbox Pumps

Cat Pumps gearbox pumps are direct-drive high-pressure pumps that can be easily mounted on standard gas or diesel engines up to 24 horsepower. The gearbox drive has a 2 to 1 ratio allowing the pump to run at half the speed of the engine. This configuration provides a compact assembly without running the pump at high engine RPM. The gearbox is completely sealed, offering protection against rain, dust, and humidity. Cat Pumps gearbox pumps are #1 in commercial-duty pressure washers due to superior product life and ability to perform well in continuous duty use.

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Direct Drive, Gas Engine / Brass
Model Max GPM Max LPM Max PSI Max BAR RPM Shaft
740G1 2.80 10.60 5000 345 3465 1"
3CP1120G 3.50 13.20 2200 152 3600 3/4"
760G1 3.50 13.20 5000 345 3465 1"
5CP3160CSSG1 4.00 15.10 3500 241 3320 1"
45G1 4.50 17.00 3500 241 3353 1"
45G118 4.50 17.00 3500 241 3353 1 1/8"
5CP3120CSSG1 4.50 17.00 3500 241 3353 1"
60G1 4.50 17.00 4000 276 3450 1"
60G118 4.50 17.00 4000 276 3450 1 1/8"
700G1 4.50 17.00 5000 345 3465 1"
5CP3150CSSG1 5.00 18.90 3000 207 3450 1"
5CP5135CSSG1 5.80 22.00 3500 241 3450 1"
5CP5140CSSG118 6.20 23.60 3000 207 3450 1 1/8"
5CP5140CSSG1 6.20 23.60 3000 207 3450 1"
5CP6120CSSG1 7.20 28.00 1500 103 3450 1"
5CP6180CSSG1 8.00 30.30 1500 103 3450 1"
56G1 8.00 30.30 2500 172 3600 1"
56G118 8.00 30.30 2500 172 3600 1 1/8"
56HSG1 8.00 30.30 3000 207 3600 1"
56HSG118 8.00 30.30 3000 207 3600 1 1/8"
5CP6190G1 9.70 36.90 1200 83 3600 1"
7CP6110CSG1 10.00 37.90 2000 138 3400 1"
7CP6160CSG1 10.00 38.00 2500 172 3400 1"
7CP6170G1 12.00 45.40 1800 124 3264 1"
Direct Drive, Gas Engine / 316 Stainless Steel
Model Max GPM Max LPM Max PSI Max BAR RPM Shaft
3CP1241G 3.00 11.40 2000 138 3600 3/4"
3CP1211G 3.80 14.40 1500 103 3400 3/4"
341G1 4.00 15.10 2000 138 3515 1"
5CPQ6241CSG1 4.00 15.10 2000 138 3600 1"
781G1 4.50 17.00 5000 345 3465 1"
351G1 5.00 18.90 1500 103 3515 1"
5CPQ6251G1 5.00 19.00 2000 138 3600 1"
5CPQ6221G1 7.40 28.00 1200 83 3600 1"
7CP6111CSG1 10.00 37.90 2000 138 3400 1"